Classifications

• • C—CHEMISTRY; METALLURGY
  • C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
  • C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
  • C04B26/00—Compositions of mortars, concrete or artificial stone, containing only organic binders, e.g. polymer or resin concrete
  • C04B26/02—Macromolecular compounds
• • C—CHEMISTRY; METALLURGY
  • C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
  • C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
  • C04B26/00—Compositions of mortars, concrete or artificial stone, containing only organic binders, e.g. polymer or resin concrete
  • C04B26/02—Macromolecular compounds
  • C04B26/04—Macromolecular compounds obtained by reactions only involving carbon-to-carbon unsaturated bonds
  • C04B26/06—Acrylates
• • C—CHEMISTRY; METALLURGY
  • C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
  • C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
  • C04B2111/00—Mortars, concrete or artificial stone or mixtures to prepare them, characterised by specific function, property or use
  • C04B2111/00474—Uses not provided for elsewhere in C04B2111/00
  • C04B2111/00715—Uses not provided for elsewhere in C04B2111/00 for fixing bolts or the like

Definitions

• radical resin mortars changes over time. Radically curing mortars are particularly subject to open time drift/gel time drift. This means that the curing time changes and usually shortens over the storage period. With radical resins, there is a risk of unintended partial conversion during storage, leading to drift in properties such as reduced performance and, above all, a change in the time until curing and/or gelation (gel time), especially a reduction in this time. This can manifest as altered open and curing times, resulting in curing times that are too short for practical application (too short an open time, meaning too short a time in which the mixture of hardener and reactive resin remains liquid enough to be processed). Furthermore, performance losses – sometimes drastic – can occur over increasing storage time.
• N-oxyl radicals see e.g. EP 3 034 520 A1
• TEMPO or TEMPOL phenothiazines or galvinoxyl radicals or phenolic inhibitors
• non-alkylated or alkylated hydroquinones such as hydroquinone, mono-, di- or trimethylhydroquinone, tert-butylhydroquinone, hydroquinone monoethyl ether or p-benzoquinone
• non-alkylated or alkylated phenols such as 4,4'-methylene-bis(2,6-di-tert-butylphenol), 1,3,5-trimethyl-2,4,6-tris(3,5-di-tert-butyl-4-hydroxybenzyl)benzene
• non-alkylated or alkylated catechols such as tert-butylcatechol, 3,5-di-tert-butyl-1,2-benzenediol or 4-tert-butyl-1,2-benzenediol, or 4-methoxyphenol, and also triphenyl phosphite
• inhibitors (often also referred to as stabilizers)
• EP 4 001 327 A1 describes two-component mortars comprising a curable resin component and a separately arranged hardener component, a phenolic inhibitor and a gelling time stabilizer with at least one acid functionality This includes, among other things, the stabilization of inhibitors such as those mentioned in the preceding paragraph.
• gel time stabilizers examples include difunctional organic acids and/or at least diprotic inorganic acids and/or soluble oligomers or (co)polymers, each bearing acidic groups such as carboxylate or phosphate groups. Specifically mentioned are itaconic acid, maleic acid, citric acid, phosphoric acid, and combinations thereof.
• Paragraph [0018] states that the acids are attributed with the effect of shifting the equilibrium in phenolic inhibitors from the more oxidation-sensitive phenolate form towards (undissociated) phenol, thus achieving increased storage stability.
• the object of the present invention is to provide low-drift or, in particular, (at least largely) drift-free radically curable synthetic mortar systems based on radically curable
• synthetic mortar systems should be provided that can be used for sufficiently long storage and for systems with long open and working times, where a reduction in gel time and/or a short gel time is perceived as a deficiency (especially by users).
• this relates to The invention therefore also includes the use of a hydrophilic gel time stabilizer in all embodiments of the invention, in particular vitamin C or furthermore a reducing sugar, another aldehyde, sodium sulfite, sodium dithionite and sodium thiosulfate; or mixtures of two or more of the aforementioned gel time stabilizers; for stabilizing the gel time in an artificial mortar system for fastening technology as defined above and below and in the claims.
• a hydrophilic gel time stabilizer in all embodiments of the invention, in particular vitamin C or furthermore a reducing sugar, another aldehyde, sodium sulfite, sodium dithionite and sodium thiosulfate; or mixtures of two or more of the aforementioned gel time stabilizers; for stabilizing the gel time in an artificial mortar system for fastening technology as defined above and below and in the claims.
• the gel time stabilizers enable high, long-term performance of the synthetic mortar systems containing them. In particular, they allow for good control of drift time and usable open times even after prolonged storage.
• Preferred mass fractions for the gel time stabilizer(s) in all embodiments of the invention are in the range of 0.001 to 1 wt.%, preferably 0.01 to 1 wt.%. especially at 0.01 to 0.5 wt.%, advantageously at ⁇ 0.05 or 0.1 ⁇ to ⁇ 0.2 or preferably 0.15 ⁇ , e.g. at 0.1 to 0.15 or at 0.1 wt.%.
• artificial mortar systems falling under the first embodiment which, in addition to at least one gel time stabilizer as mentioned above or below, also contain one or more silanes, such preferably (meth)acrylsilane (in particular methacryloxyalkyltrialkoxysilane, such as (in particular 3-) methacryloxypropyltrimethoxysilane), also known as methacryloyloxypropyltrimethoxysilane.
• silanes such preferably (meth)acrylsilane (in particular methacryloxyalkyltrialkoxysilane, such as (in particular 3-) methacryloxypropyltrimethoxysilane), also known as methacryloyloxypropyltrimethoxysilane.
• Preferred concentration ranges for the silane(s), particularly those highlighted as preferred or exemplary, are 0.01 to 30 wt.%, particularly 0.1 to 20 wt.%, preferably 0.5 to 10 wt.%.
• artificial mortar systems comprising one or more accelerators selected from tertiary, in particular N-hydroxyalkyl group-substituted, aromatic amines, in particular selected from the group consisting of epoxyalkylated anilines, toluidines or xylidines, such preferably propoxylated toluidine, aniline or xylidine, and for example N,N-bis(hydroxyethyl or in particular hydroxypropyl)-toluidines or -xylidines, such as N,N-bis(hydroxypropyl or hydroxyethyl)-p-toluidine, N,N-bis(hydroxyethyl or hydroxypropyl)-xylidine, or corresponding higher alkoxylated technical products, such preferably ethoxylated p-toluidine (also referred to as overethoxylated N,N-dihydroxyethyl)
• accelerators selected from tertiary, in particular N-hydroxyalkyl group-substitute
• Preferred concentration ranges for the accelerator(s), in particular any accelerator(s) highlighted as preferred or exemplary, are 0.01 to 8 wt.%, preferably 0.05 to 3 wt.%.
• a particular variant in all embodiments of the invention are such synthetic mortar systems (iii) which include as accelerators N,N-bis(2-hydroxypropyl)-p-toluidine and one or more inhibitors selected from 2,4-dimethyl-6-tert-butylphenol (TBX, most preferred), 2,2'-methylene-bis-(6-tert-butyl-4-methylphenol), ethylene-bis(oxyethylene)-bis-(3-(5-tert-butyl-4-hydroxy-m-tolyl)-propionate) (e.g. Irganox® 245 from BASF; CAS No.
• TBX 2,4-dimethyl-6-tert-butylphenol
• ethylene-bis(oxyethylene)-bis-(3-(5-tert-butyl-4-hydroxy-m-tolyl)-propionate) e.g. Irganox® 245 from BASF; CAS No.
• 68610-51-5 include, and/or those containing ethoxylated p-toluidine as an accelerator, 2,2'-methylene-bis-(6-tert-butyl-4-methylphenol, ethylene-bi-(oxyethylene)-bis-(3-(5-tert-butyl-4-hydroxy-m-tolyl)-propionate or, in particular, 2,4-dimethyl-6-tert-butylphenol as an inhibitor, and optionally a silane in the form of 3-methacryloxypropyltrimethoxysilane; wherein the radically curable reactive resin is preferably a urethane methacrylate resin or, in particular, includes, for example, each in a mass fraction of 0.01 to 10 wt.%.
• the invention relates to the use of a multi-component (in particular two-component) synthetic mortar system as defined above or below, particularly for the first embodiment, and especially for variant (i) and, more preferably for variant (ii) or, most preferably for variant (iii), in fastening technology in construction, in particular for fastening anchoring elements, such as bolts or the like, in a recess or hole, in particular a borehole, in each case in a building substrate, or for fixing reinforcement elements in recesses in concrete or furthermore in another building substrate.
• a multi-component (in particular two-component) synthetic mortar system as defined above or below, particularly for the first embodiment, and especially for variant (i) and, more preferably for variant (ii) or, most preferably for variant (iii), in fastening technology in construction, in particular for fastening anchoring elements, such as bolts or the like, in a recess or hole, in particular a borehole, in each case in a building substrate, or for fixing reinforcement elements
• the invention relates to a method for bonding objects together, in which a multi-component (in particular two-component) synthetic mortar system as defined above or below, particularly for the first embodiment, especially for variant (i) and more preferably for variant (ii), ) or most preferably for variant (iii), is applied or introduced onto the whole or part of a surface of an object or substrate to be bonded, and the surfaces of the objects to be bonded are brought into contact with each other and the synthetic mortar system is allowed to harden.
• a multi-component (in particular two-component) synthetic mortar system as defined above or below, particularly for the first embodiment, especially for variant (i) and more preferably for variant (ii), ) or most preferably for variant (iii)
• percentage or content values mean mass percent (specified as “%” or “wt.%) or the relative mass fraction, based on all ingredients of an artificial mortar system according to or used in accordance with the invention (excluding packaging material and accessories such as static mixers), unless otherwise stated or apparent.
• radically curable means the same as “radically polymerizable”. In application, it can also be understood as “curing”.
• the synthetic mortar system(s) according to the invention, or usable according to the invention contain at least one component (then referred to as the reactive resin component) containing one or more reactive resins in the form of unsaturated compounds (preferably having unconjugated double bonds), in particular reactive resins having one or more olefinic bonds per molecule – on whose (radical) polymerizability their curability is based.
• the reactive resin component containing one or more reactive resins in the form of unsaturated compounds (preferably having unconjugated double bonds), in particular reactive resins having one or more olefinic bonds per molecule – on whose (radical) polymerizability their curability is based.
• further components may also be included, e.g., fillers, additives, or other components mentioned above or below. These further ingredients may, for example, be present in a total mass fraction of up to 80%, preferably between 0.01% and 65%.
• the component in question contains more than 50%, preferably more than 60%, as well as more than 70% up to 100% (mass fraction based on the respective component, e.g. "reactive resin component” or “hardener component”) of the substances listed after “based on”.
• (Meth) or “(meth)” means that the compounds containing this word component have a methyl group or a hydrogen atom, e.g. in "(Meth)acrylate”, which stands for acrylate or methacrylate or a mixture thereof.
• All embodiments of the invention relate in particular to the use of a radically curable synthetic mortar system for application in fastening technology or in the construction sector, i.e. in particular for use in fastening anchoring elements, such as bolts, screws or the like, in a recess or a hole, in particular a borehole, in each case in a building substrate, or in fastening reinforcement elements in a building substrate, in particular concrete.
• fastening anchoring elements such as bolts, screws or the like
• Anchoring elements include, in particular, those made of metal, e.g., undercut anchors, threaded rods, screws, drill anchors, bolts, or also of other materials, such as composite materials, plastics or wood.
• Reinforcing elements include in particular reinforcing or reinforcing steel (e.g., reinforcing steel mats or steel bars), and furthermore geotextiles or glass fibers, carbon fibers, plastic fibers, (furthermore natural fibers, such as jute fibers), especially in the form of woven fabrics, e.g., woven mats.
• Building substrates are in particular concrete or masonry, for example made of natural stone, artificial stones (such as e.g. clay bricks, masonry bricks, clinker bricks, hollow blocks, aerated concrete blocks) or concrete, and also building substrates made of wood.
• the compositions are designed for use without photoactivation or thermal crosslinking, that is to say in particular for reaction at temperatures in the range of -10 to 50 °C with a hardener as described herein.
• ethylene unsaturated compounds which includes styrene and derivatives; or especially vinyl esters, such as (meth)acrylates, urethane (meth)acrylates or itaconates, or epoxy (meth)acrylates; furthermore unsaturated polyesters, vinyl ethers, allyl ethers, dicyclopentadiene compounds and unsaturated fats.
• one or more such reactive resins that (radically) curable esters with one or more unsaturated carboxylic acid residues include; preferably propoxylated or, in particular, ethoxylated aromatic diols, such as bisphenol-A, bisphenol-F or novolac (in particular di-) (meth)acrylates; epoxy(meth)acrylates, in particular in the form of reaction products of di- or poly-epoxides, e.g. bisphenol-A, bisphenol-F or novolac di- and/or poly-glycidyl ethers, with unsaturated carboxylic acids, e.g.
• ethoxylated aromatic diols such as bisphenol-A, bisphenol-F or novolac (in particular di-) (meth)acrylates
• epoxy(meth)acrylates in particular in the form of reaction products of di- or poly-epoxides, e.g. bisphenol-A, bisphenol-F or novolac di- and/or poly-glycid
• C2-C7 alkenecarboxylic acids such as in particular (meth)acrylic acid; urethane and/or urea(meth)acrylates, in particular urethane(meth)acrylates (especially preferred) (also referred to as "vinyl ester urethanes"), which are obtained, e.g., by reacting di- and/or polyisocyanates (higher-functionality isocyanates) with suitable (meth)acrylic compounds (such as hydroxyethyl or hydroxypropyl methacrylate), optionally with the participation of hydroxy compounds containing at least two hydroxyl groups, as are found, for example, in the DE 39 40 309 A1 and/or DE 41 11 828 A1 described, are obtained; or furthermore unsaturated polyester resins, or the like, or two or more of these curable unsaturated organic components.
• suitable (meth)acrylic compounds such as hydroxyethyl or hydroxypropyl methacrylate
• urethane(meth)acrylates in radically curable reactive resins based on urethane(meth)acrylate in the inventive mortar systems are those resulting from the reaction of a pre-extended monomeric di- or polyisocyanate and/or from the reaction of a monomeric or polymeric di- or polyisocyanate (e.g., PMDI, MDI) with hydroxyalkyl(meth)acrylate, such as hydroxyethyl or hydroxypropyl(meth)acrylate.
• a monomeric or polymeric di- or polyisocyanate e.g., PMDI, MDI
• hydroxyalkyl(meth)acrylate such as hydroxyethyl or hydroxypropyl(meth)acrylate.
• urethane(meth)acrylates are also found in WO 2022/002567 A1 (especially on pages 9, second to last paragraph, to page 13, second to last paragraph) and EP 3 000 792 A1 (especially example 2).
• epoxy(meth)acrylates present or used in particular embodiments of the invention are those of the formula or more generally, taking into account the pre-extension reaction in the preparation of the bisphenol A diglycidyl ether of the formula where n represents a number greater than or equal to 1 (if mixtures of different molecules with different n-values are present and represented by the formula, non-integer numbers are also possible as the average). These are also subsumed here under the term "vinyl esters”.
• Ethoxylated aromatic diols such as bisphenol-A, bisphenol-F or novolac (especially di-) (meth)acrylates
• Ethoxylated aromatic diols are preferably those of the formula or more generally, taking into account higher degrees of ethoxylation: wherein a and b each independently represent a number greater than or equal to 0, with the proviso that preferably at least one of the values is greater than 0, preferably both are 1 or greater (if mixtures of different molecules with different (a and b) values are present and represented by the formula, non-integer numbers are also possible as the average value; for isolated individual molecules, only integers are permitted).
• the above formulas replace the bivalent residues (-O-( CH2 )-( CH2 )) (a or b) with those of the formulas (-O-(CH( CH3 )-( CH2 )) p- or (-O-( CH2 )-(CH( CH3 ))) p- , where p (independently for each side of the molecule) is one of the values corresponding to a or b. has defined meanings.
• the numbers a, b and p are preferably mean values of a maximum of 20, in particular of a maximum of 10 individual values.
• urethane (meth)acrylates present or used in particular embodiments of the invention are those resulting, on the one hand, from the reaction of a pre-extended di- or polyisocyanate and/or, on the other hand, from the direct reaction of a di- or polyisocyanate (e.g., PMDI and/or MDI) with hydroxyethyl or hydroxypropyl (meth)acrylate.
• the di- or polyisocyanate can be of monomeric, oligomeric, and/or polymeric structure.
• the only radically curable synthetic resin (reactive resin) present is a urethane (meth)acrylate.
• the respective methacrylates are preferred.
• the weight fraction of this or these reactive resins in all embodiments of the invention is preferably in the range of 0.1 to 90 wt.%, e.g. between 0.5 and 75 wt.% or between 1 and 40 wt.% or in particular from 15 to 60, for example 20 to 50 wt.%.
• the artificial mortar systems according to the invention or used according to the invention may contain further ingredients.
• ingredients especially common in the fastening sector
• Suitable accelerators include those with sufficiently high activity, particularly those mentioned above. One or more such accelerators are possible.
• the accelerators preferably have a concentration of 0.005 to 10%, and particularly 0.01 to 5% by weight.
• silanes may be selected from silanes comprising (meth)acryloyl residues, for example (meth)acrylsilane(s), preferably (in particular) 3-)(meth)acryloyl-oxyalkyltrialkoxysilane(s), such as (meth)acryloyloxymethyltrimethoxysilane or -triethoxysilane, 3-(meth)acryloyl-oxypropyltrimethoxysilane or 3-(meth)acryloyl-oxypropyltriethoxysilane, 3-(meth)acryloyl-oxypropylmethyldimethoxysilane or -diethoxysilane, and from alkenyloxysilanes, such as vinyltrimethoxysilane, vinyltriethoxysilane, vinyltriacetoxysilane or vinyltri(methoxyethoxy)silane, or furthermore vinyltrichlorosilane.
• alkenyloxysilanes such as vinyl
• Fillers can also be further or advantageously silanized, for example as methacrylsilane-treated quartz flour, such as Silbond MST ® from Quarzwerke GmbH, as methacrylsilane-treated silica, such as Aktisil MAM ® from Hoffmann Mineral (Neuburg, Germany), or methacryloxypropyltrimethoxysilane-treated pyrogenic silica, such as Aerosil R 711 ® from Evonik.
• methacrylsilane-treated quartz flour such as Silbond MST ® from Quarzwerke GmbH
• methacrylsilane-treated silica such as Aktisil MAM ® from Hoffmann Mineral (Neuburg, Germany
• methacryloxypropyltrimethoxysilane-treated pyrogenic silica such as Aerosil R 711 ® from Evonik.
• thixotropic rheology aids such as pyrogenic silica, bentonites, alkyl and methyl celluloses, castor oil derivatives or the like can be used as thixotropic agents, e.g. in a weight fraction of 0.01 to 50 wt.%, for example from 0.1 to 5 wt.%.
• additives may also be added, such as plasticizers, non-reactive diluents, additional silanes, flexibilizers (especially solvents), stabilizers, antistatic agents, thickeners, hardening catalysts, rheology aids, wetting and dispersing agents, coloring additives such as dyes or, in particular, pigments, for example, for different coloring of the components to better control their mixing, or the like, or mixtures of two or more of these.
• One or more such additives may be added, for example, in total weight proportions of 0 to 90 wt.%, for example, 0 to 40 wt.%. They may be added to one or more components of the synthetic mortar systems according to the invention or used according to the invention in a manner apparent and known to those skilled in the art.
• a hardener is required as a component, or in particular as a part.
• the hardener (preferably referred to as the hardener component) comprises at least one radical initiator as the actual initiator (hardener in the narrower sense).
• the term "hardener” preferably means the pure initiators mentioned above and below, or phlegmatized initiators with or without the addition of fillers and/or further additives, such as thickeners and/or other additives, such as dyes, additives, and the like—in other words, a complete hardener component.
• additives such as gypsum, chalk, ethylene glycol dibenzoate, water, pyrogenic silica, phthalates, chlorinated paraffin, or the like may be added.
• thickeners, fillers (such as those mentioned above), and other additives mentioned above may also be added.
• solvents such as water, may be added.
• the proportion of all additives can, for example, range from 0.1 to 70 wt% by mass, e.g., from 1 to 40 wt%.
• the proportion of the initiator in a possible preferred embodiment of the invention is 0.1 to 90 wt.%, in particular 0.5 to 50 wt.%, and in particular 0.9 to 10 wt.%.
• the proportion of the initiator with respect to the hardener component and/or the overall system is ⁇ 5%, in particular ⁇ 1%.
• radical-forming peroxides e.g. organic peroxides such as diacyl peroxides, e.g. in particular dibenzoyl peroxide, ketone peroxides such as methyl ethyl ketone peroxide or cyclohexanone peroxide, or alkyl peresters such as tert-butyl perbenzoate, or furthermore azo initiators or inorganic peroxides such as persulfates or perborates, as well as mixtures thereof, are used as initiators for the hardening of the artificial mortar systems according to the invention.
• organic peroxides such as diacyl peroxides, e.g. in particular dibenzoyl peroxide, ketone peroxides such as methyl ethyl ketone peroxide or cyclohexanone peroxide, or alkyl peresters such as tert-butyl perbenzoate, or furthermore azo initiators or inorganic peroxide
• the proportion of the hardener (hardener component) in a synthetic resin fastening system according to the invention is preferably in a range of 0.2 to 60 wt.%, e.g. 0.5 to 50 wt.%, in particular 1 to 30 wt.%.
• a thiol-based hardener system according to patent application DE 10 2013 114 061 A1 or a system based on CH-acidic compounds as described in DE 10 2015 003 221 A1, which are incorporated herein by reference, can be used for curing the reactive resin formulations according to the invention.
• Another hardener system is one comprising at least one an activator in the form of a metal salt and as a radical starter one based on aldehydes or ketones, each in combination with amines, or based on aldimines or ketimines, which is described in particular in the patent applications WO2016/206777 A1 and WO2022/002567 A1 , which are also included here by reference, are described in more detail.
• Fillers can be included in one or, in the case of multi-component synthetic mortar systems, in several components, for example in the form of a multi-component kit. Their proportion is preferably 0 to 80 wt.%, for example 5 to 80, e.g. 40 to 70 wt.%.
• Common fillers include hydraulically hardenable fillers such as gypsum, quicklime, water glass, or especially cements such as Portland cement or alumina cements; mineral or mineral-like fillers such as chalk, sand, rock flour, quartz, glass, porcelain, ceramics, silicates, clays, barite, aluminum oxides or hydroxides such as corundum, or the like, which may be added as powders, in granular form, as flours, or in the form of molded parts; or other fillers, such as those found in... WO 02/079341 and WO 02/079293 named, or mixtures of two or more thereof; wherein the fillers may furthermore, or in particular as already mentioned, or otherwise be silanized.
• hydraulically hardenable fillers such as gypsum, quicklime, water glass, or especially cements such as Portland cement or alumina cements
• mineral or mineral-like fillers such as chalk, sand, rock flour, quartz, glass, porcelain, ceramics, silicates,
• powdered (e.g., ground) recycled materials from waste products can also be used as fillers.
• the recycled filler is selected from the group consisting of concrete, bricks, sand-lime bricks, natural stone, fly ash, rubber, waste plastics, waste glass, and possibly cured chemical resin fastening systems present during the processing of the recycled filler.
• the artificial mortar systems according to the invention or used according to the invention can be formulated as one-component or preferably as multi-component (especially two-component) systems, for example in the form of multi-component or especially two-component kits (comprising a reactive resin component and a hardener component).
• a multi-component kit is defined in particular as a two- or (further) multi-component kit (preferably a two-component kit) comprising one component (A) containing one or more radically curable synthetic resins (reactive resins), as described above and below, and a corresponding hardener component (B) as described above and below, wherein further additives may be provided in one or both of the components, preferably a two- or further multi-chamber device, wherein the mutually reactive components (A) and (B) and optionally further separate components are contained in such a way that their constituents do not come into contact with each other during storage prior to use, but which allows the components (A) and (B) and optionally further components to be applied to or introduced into at least one surface of objects to be bonded or to be fastened at the desired location, for example, in the case of an anchoring element directly in front of or into a recess or hole, in particular in a borehole, or in the case of fastening a reinforcement element to a building substrate
• Cartridges are also suitable, for example, nested cartridges such as (especially multi- or dual-chamber) ampoules; or especially multi- or dual-component cartridges (which are also particularly suitable).
• the several or preferably two components (in particular (A) and (B)) of the synthetic mortar system according to the invention, with the compositions mentioned above and below, are contained in the chambers for storage before use, wherein a static mixer is preferably also included in the corresponding kit.
• the synthetic mortar systems of the present kind can be housed in two- or multi-chamber foil bags, wherein the components can be mixed together outside or, if provided for by mechanical action such as kneading, within the respective foil bag, can be opened by predetermined breaking points and introduced through an opening to the outside onto or into the substrate to be bonded.
• the volume ratio of component (A), which includes one or more radically curable synthetic resins (reactive resins), and a hardener component (B) ((A) : (B)) is preferably in the range of 15 : 1 to 1 : 5, in particular from 12 : 1 to 1 : 2, more preferably from 10 : 1 to 3 : 1 or 2 : 1.
• the respective raw materials were mixed in a speed mixer to produce the mortar components.
• Example 1 Systems according to the invention and reference example:
• a hardener component (B1) composed as follows was used: raw material Percentage (by weight) demineralized water 30 Phlegmatized dibenzoyl peroxide (33 wt%) 42 Quartz sand 36.5 Additives and thickeners 1.5 sum 100
• the amount of quartz sand is reduced to 43.44 wt% compared to mortar A; the other raw materials and their quantities remain unchanged.
• HPMA hydroxypropyl methacylate.
• the setting times of the mortars were always determined at 23 °C.
• the first setting time was determined immediately after production (fresh), and subsequent determinations were made after storage at 23 °C or 40 °C.
• the determination was carried out by mixing 50 g of mortar. The mixture was thoroughly mixed with 5 g of hardener using a wooden spatula, and the time until solidification (the point at which the wooden spatula can no longer be moved) was measured.
• Ascorbyl palmitate has the formula:
• the load values were determined under standard conditions (dry, cleaned borehole (R1) (blowout with a hand blower (2x), brushing with a wire brush (2x), blowout with a hand blower (2x)).
• the load values determined in this way are the mean of five individual measurements.
• Example 3 Example of connection reinforcement:
• a suitable extension hose and injection aid are attached to a static mixer (e.g. , FIS MR Plus).
• the injection aid is inserted into the borehole up to the bottom, and the respective synthetic mortar is injected.
• the pressure of the injected mortar allows the injection aid to move freely without obstruction.
• the anchor is actively pulled out of the borehole and pushed out.
• the borehole is then filled two-thirds full with mortar to ensure that the annular gap between the reinforcing anchor (or reinforcing steel) and the concrete is completely filled over the entire embedment depth. Fill until the mortar level indicator becomes visible.
• the reinforcing anchor (or reinforcing steel) is inserted into the backfilled borehole up to the setting depth mark.
• the setting process can be facilitated by rotating the reinforcing anchor (or reinforcing steel) back and forth.

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